WCF Transport vs Message Level Security

Tags: | Posted by blockwood on 5/5/2010 1:42 AM | Comments (0)

How Message and Transport Security Compare

Pros and Cons of Transport-Level Security

Transport security has the following advantages:

  • Does not require that the communicating parties understand XML-level security concepts. This can improve the interoperability, for example, when HTTPS is used to secure the communication.
  • Generally improved performance.
  • Hardware accelerators are available.
  • Streaming is possible.

Transport security has the following disadvantages:

  • Hop-to-hop only.
  • Limited and inextensible set of credentials.
  • Transport-dependent.

Disadvantages of Message-Level Security

Message security has the following disadvantages:

  • Performance
  • Cannot use message streaming.
  • Requires implementation of XML-level security mechanisms and support for WS-Security specification. This might affect the interoperability.

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